{"title":"2-苄基-5-对溴苄基环戊酮的光二聚化,晶体-晶体转变:二聚体的x射线研究","authors":"D. Whiting","doi":"10.1039/J39710003396","DOIUrl":null,"url":null,"abstract":"2-Benzyl-5-p-bromobenzylidenecyclopentanone photodimerises in the crystalline state, yielding directly a crystalline dimer. The dimer crystallises in the orthorhombic space group Pbca with Z= 4 in a unit cell of dimensions: a= 10·27, b= 8·98, and c= 32·96 A. The X-ray crystal structure was solved from diffractometer data by the heavy-atom method with conventional Patterson and fourier techniques and refined by least-squares methods to R 0·134 for 1674 independent reflections.","PeriodicalId":17245,"journal":{"name":"Journal of The Chemical Society C: Organic","volume":"25 1","pages":"3396-3398"},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Photodimerisation of 2-benzyl-5-p-bromobenzylidenecyclopentanone, a crystal–crystal transformation: X-ray study of the dimer\",\"authors\":\"D. Whiting\",\"doi\":\"10.1039/J39710003396\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"2-Benzyl-5-p-bromobenzylidenecyclopentanone photodimerises in the crystalline state, yielding directly a crystalline dimer. The dimer crystallises in the orthorhombic space group Pbca with Z= 4 in a unit cell of dimensions: a= 10·27, b= 8·98, and c= 32·96 A. The X-ray crystal structure was solved from diffractometer data by the heavy-atom method with conventional Patterson and fourier techniques and refined by least-squares methods to R 0·134 for 1674 independent reflections.\",\"PeriodicalId\":17245,\"journal\":{\"name\":\"Journal of The Chemical Society C: Organic\",\"volume\":\"25 1\",\"pages\":\"3396-3398\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society C: Organic\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J39710003396\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chemical Society C: Organic","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J39710003396","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Photodimerisation of 2-benzyl-5-p-bromobenzylidenecyclopentanone, a crystal–crystal transformation: X-ray study of the dimer
2-Benzyl-5-p-bromobenzylidenecyclopentanone photodimerises in the crystalline state, yielding directly a crystalline dimer. The dimer crystallises in the orthorhombic space group Pbca with Z= 4 in a unit cell of dimensions: a= 10·27, b= 8·98, and c= 32·96 A. The X-ray crystal structure was solved from diffractometer data by the heavy-atom method with conventional Patterson and fourier techniques and refined by least-squares methods to R 0·134 for 1674 independent reflections.